ML23242A118

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Research Challenges and Opportunities in the Safety Assurance of Nuclear Reactors
ML23242A118
Person / Time
Issue date: 09/07/2023
From: Sushil Birla
NRC/RES/DE
To:
Sushil Birla 301-415-2311
References
Download: ML23242A118 (4)


Text

Research Challenges and Opportunities in the Safety Assurance of Nuclear Reactors Sushil Birla Senior Technical Advisor U.S. Nuclear Regulatory Commission Vanderbilt University Institute for Software Integrated Systems: Research Landscapes Nashville September 7, 2023 The views expressed herein are those of the author and do not represent an official position of the U.S. NRC.

Reactor protection concept Source: IAEA # NP-T-1.5

Challenges in performance-based assurance

  • Identifying what can go wrong (designed-in hazards)

- The specific causes

  • Formulating commensurate requirements

- Their validation

  • Verification: Correctness-by-Construction

- Ability to evaluate the effect of gaps on the system function

Research opportunities Designed-in Assurance

  • Avoidance/prevention of hazardous defects

- Integration of systematized identification of hazards

- Correctness-by-Construction concepts, e.g.:

  • Refinement: Requirements Architecture Detailed Design Implementation
  • Composability
  • Domain modeling Domain Engineering
  • NRC research result: Open-source research platform

- https://github.com/GaloisInc/HARDENS Sushil.Birla@nrc.gov